(1):type:clip-on;slide-on(2):open angle:35~175 thickness of cup :3~15;diameter of cup:26 35 40(3):material:iron:alloy(4):plated a coat of brass on surface, then plated again a coat of Ni and Cr for anti-corrode. (5) have three dimensional adjust or right and left adjust, the adjust distance is 0mm to 6mm